SafeR Bearing Assemblies
For improved reliability & extended wear life
SafeR bearing assemblies are standard in SafeR-Series slurry pumps. Designs also available to for upgrading Metso®, Goulds®, Flowserve® and legacy brands.
7D have developed a range of slurry pump products which feature patented innovative designs that can significantly reduce the operational costs of slurry pumping. By addressing key performance areas, 7D provide reliability, longer service life and greater efficiency.
7D advanced pump upgrades include the SafeR™ bearing assembly, an innovative design protecting against contaminants, reducing grease consumption and improving overall plant reliability.
Less maintenance
Only requires greasing every few months. Directional grease port prevent over consumption of grease
Advanced bearing isolators
Bulwark stainless steel and non-contacting isolators provide a unique barrier to prevent ingress of contaminant
Choice of oil or grease lubrication
Interchangeable
With legacy slurry pumps allowing improvements to be achieved without complex modifications
Improved bearing reliability and extended wear life
It is crucial for bearing assemblies to be reliable, to prevent expensive and unexpected downtime. The 7D SafeR bearing assembly offers many updated parts to improve on typical legacy failure points.
Contamination and grease consumption are major issues in standard bearing assemblies. Contamination is the leading cause of bearing failure, with approximately 55% of bearing failures due to contamination leading to unscheduled downtime and lost production.
Up to 95% of grease is wasted in conventional bearing assemblies. The SafeR bearing assembly was specifically designed to prevent against contamination, reduce grease consumption, improve maintenance intervals and reduce inventory costs.
Features & benefits
1. Bearing Housing
- Old bearing assemblies can be upgraded in-situ
- Rated lifting lugs for safe lifting (no threaded holes)
- Ductile Iron Standard. 316SS, CD4MCu optional extra
2. Shaft
- 1040 standard
- 4140, 316SS, 2205, 431T, 17-4PH available as optional extra
- For optimum frame life, Wolfram long sleeves can be supplied as an optional extra on most frames
- Wide range of materials available to suit the most demanding services
- Non-contact metals so isolator does not wear
- Permanent bearing protection
- Can be installed by 7D or retrofitted on site
- Maintenance free
- Ultra-low energy consumption
- Shaft sizes of 1.59cm (0.6”) to 11.1cm (4.3”). Other sizes available on request.
- Temperature tolerances from -40°C (-40°F) to 110°C (424°F)
- Manufactured in Stainless Steel for extreme conditions
5. Spacer
- Spacer easily retrofitted to suit ‘XL’ shafts. Simple maximised interchangeability
6. Severe Duty End Cover
- Shims and o-ring provide double protection against possible contaminant entry
- Added o-ring for superior gland spray protection
- Wide material range, stainless steel as standard
7. Splash Guard
- Protects against high pressure leakage
How to upgrade
The Bulwark Bearing Guard is a non-contacting, permanent bearing protection device.
Bulwark Bearing Guard bearing isolator kits (standard in new SafeR-Series pumps) are available to upgrade existing legacy equipment without the need for complex modifications, to deliver similar advantages of the complete SafeR bearing assembly.
- The recessed design ensures dust, grime and mud do not sit on the top of the seal, damaging it over time.
- A protective bearing isolator improves maintenance intervals and reduces your inventory needs. The improved design catches lubricant in the inner section of the labyrinth and flows back to the bearing housing. External contamination is prevented from entering the bearing housing, caught in the outer labyrinth parts and released through a port in the stator by centrifugal force and gravity.
- The splash guard ensures even sustained high pressure gland leakage does not enter the bearing assembly.
Contact our technical team for videos and reports of the extensive test work conducted, providing confidence to claim superiority over competitor designs.
